Hook



FIG. 1 is a perspective view of a hook according to my design;

FIG. 2 is a front elevation view of my design, the rear elevation view being a mirror image of said front elevation view;

FIG. 3 is an enlarged left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a hook, substantially as shown and described. 